DK0647240T3 - Continuous ultrasonic vulcanization of vulcanized alastomers - Google Patents

Continuous ultrasonic vulcanization of vulcanized alastomers

Info

Publication number
DK0647240T3
DK0647240T3 DK93916558T DK93916558T DK0647240T3 DK 0647240 T3 DK0647240 T3 DK 0647240T3 DK 93916558 T DK93916558 T DK 93916558T DK 93916558 T DK93916558 T DK 93916558T DK 0647240 T3 DK0647240 T3 DK 0647240T3
Authority
DK
Denmark
Prior art keywords
vulcanized
sulfur
carbon
continuous ultrasonic
alastomers
Prior art date
Application number
DK93916558T
Other languages
Danish (da)
Inventor
Avraam Isayev
Chen Jianhua
Original Assignee
Univ Akron
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Akron filed Critical Univ Akron
Application granted granted Critical
Publication of DK0647240T3 publication Critical patent/DK0647240T3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C19/00—Chemical modification of rubber
    • C08C19/08—Depolymerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2321/00—Characterised by the use of unspecified rubbers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/911—Recycling consumer used articles or products
    • Y10S264/912—From toroidal shapes, e.g. resilient tires

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Toxicology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Materials For Medical Uses (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Disintegrating Or Milling (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

This invention relates to a continuous ultrasonic method for breaking the carbon-sulfur (C-S), sulfur-sulfur (S-S), and if desired, carbon-carbon (C-C) bonds in a vulcanized elastomer. It is well known that vulcanized elastomers having a three-dimensional chemical network, cannot flow under the effect of heat and/or pressure. This creates a huge problem in the recycling of used tires and other elastomeric products. Through the application of certain levels of ultrasonic amplitudes in the presence of pressure and optionally heat, the three-dimensional network of vulcanized elastomer can be broken down. As a most desirable consequence, ultrasonically treated cured rubber becomes soft, thereby enabling this material to be reprocessed and shaped in a manner similar to that employed with uncured elastomers.
DK93916558T 1992-06-22 1993-06-16 Continuous ultrasonic vulcanization of vulcanized alastomers DK0647240T3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/902,074 US5258413A (en) 1992-06-22 1992-06-22 Continuous ultrasonic devulcanization of valcanized elastomers
PCT/US1993/005758 WO1994000497A1 (en) 1992-06-22 1993-06-16 Continuous ultrasonic devulcanization of vulcanized elastomers
CN93108898A CN1042432C (en) 1992-06-22 1993-07-16 Continuous ultrasonic devulcanization of vulcanized elastomers

Publications (1)

Publication Number Publication Date
DK0647240T3 true DK0647240T3 (en) 2000-12-27

Family

ID=36843300

Family Applications (1)

Application Number Title Priority Date Filing Date
DK93916558T DK0647240T3 (en) 1992-06-22 1993-06-16 Continuous ultrasonic vulcanization of vulcanized alastomers

Country Status (14)

Country Link
US (1) US5258413A (en)
EP (1) EP0647240B1 (en)
JP (1) JP3504947B2 (en)
CN (1) CN1042432C (en)
AT (1) ATE195458T1 (en)
AU (1) AU668581B2 (en)
BR (1) BR9306597A (en)
CA (1) CA2137923C (en)
DE (1) DE69329245T2 (en)
DK (1) DK0647240T3 (en)
ES (1) ES2151512T3 (en)
GR (1) GR3034860T3 (en)
NZ (1) NZ254379A (en)
WO (1) WO1994000497A1 (en)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5403525A (en) * 1993-10-12 1995-04-04 Abbott Laboratories Method of forming a reseal member for use with blunt cannulas
US6416705B1 (en) 1994-03-16 2002-07-09 Skf Usa, Inc. Method for devulcanization of cross-linked elastomers
AU2185695A (en) * 1994-03-16 1995-10-03 Skf Usa Inc. Method and apparatus for devulcanization of cross-linked elastomers
US5616646A (en) * 1994-11-07 1997-04-01 Genesee Polymers Corporation Restructuring silicone rubber to produce fluid or grease
US5799880A (en) * 1996-12-02 1998-09-01 Ultramer, Inc. Method and apparatus for continuous devulcanization of rubber
US5904885A (en) * 1997-12-04 1999-05-18 Illinois Institute Of Technology Process for recycling of rubber materials
US6333373B1 (en) 1999-02-10 2001-12-25 R&D Technology, Inc. Ground elastomer and method
JP3937209B2 (en) * 1999-09-22 2007-06-27 大日本インキ化学工業株式会社 Quantitative continuous extrusion supply method and method for producing molded article using the same
IL132422A0 (en) 1999-10-17 2001-03-19 Levgum Ltd Modifier for devulcanization of cured elastomers mainly vulcanized rubber and method for devulcanization by means of this modifier
US6420457B1 (en) 2000-04-04 2002-07-16 Westinghouse Savannah River Company, Llc Microwave treatment of vulcanized rubber
US6479558B1 (en) 2000-04-04 2002-11-12 Westinghouse Savannah River Company Microbial processing of used rubber
US6407144B1 (en) 2000-04-04 2002-06-18 Westinghouse Savannah River Company, Llc Combination biological and microwave treatments of used rubber products
US6528554B1 (en) 2001-02-15 2003-03-04 The University Of Akron Ultrasound assisted continuous process for making polymer blends and copolymers
US6387966B1 (en) 2001-05-21 2002-05-14 Vadim Goldshtein Method and composition for devulcanization of waste rubber
WO2003074254A1 (en) * 2002-02-28 2003-09-12 Scimed Life Systems, Inc. Ultrasonic assisted apparatus and process
KR20040006597A (en) * 2002-07-13 2004-01-24 평화특수고무 (주) Method and apparatus for regenerating waste rubber using ultrasonic treatment and modified ballast-mat produced by said method and apparatus
KR100529238B1 (en) 2003-06-13 2005-11-17 김진국 Apparatus and method of surface-modifying for polymer powder using rotational ultrasonic treatment
US7188791B2 (en) * 2005-01-07 2007-03-13 Eau-Viron, Incorporated Gravity pressure vessel and method for treating vulcanized rubber
DE102005061628A1 (en) * 2005-12-21 2007-06-28 Lanxess Deutschland Gmbh Hydrogenated nitrile rubber with narrow molecular weight distribution, a process for its preparation and its use
DE102005061627A1 (en) * 2005-12-21 2007-06-28 Lanxess Deutschland Gmbh Synthetic rubber with narrow molecular weight distribution, a process for its preparation and its use
US7810743B2 (en) 2006-01-23 2010-10-12 Kimberly-Clark Worldwide, Inc. Ultrasonic liquid delivery device
US7703698B2 (en) 2006-09-08 2010-04-27 Kimberly-Clark Worldwide, Inc. Ultrasonic liquid treatment chamber and continuous flow mixing system
US9283188B2 (en) 2006-09-08 2016-03-15 Kimberly-Clark Worldwide, Inc. Delivery systems for delivering functional compounds to substrates and processes of using the same
US8034286B2 (en) 2006-09-08 2011-10-11 Kimberly-Clark Worldwide, Inc. Ultrasonic treatment system for separating compounds from aqueous effluent
US7673516B2 (en) 2006-12-28 2010-03-09 Kimberly-Clark Worldwide, Inc. Ultrasonic liquid treatment system
US7712353B2 (en) 2006-12-28 2010-05-11 Kimberly-Clark Worldwide, Inc. Ultrasonic liquid treatment system
US7785674B2 (en) 2007-07-12 2010-08-31 Kimberly-Clark Worldwide, Inc. Delivery systems for delivering functional compounds to substrates and processes of using the same
US7947184B2 (en) 2007-07-12 2011-05-24 Kimberly-Clark Worldwide, Inc. Treatment chamber for separating compounds from aqueous effluent
US7998322B2 (en) * 2007-07-12 2011-08-16 Kimberly-Clark Worldwide, Inc. Ultrasonic treatment chamber having electrode properties
US20090044828A1 (en) * 2007-08-15 2009-02-19 Brahmbhatt Sudhir R Methods and Systems for Debonding an Undesirable Material from a Device Using Ultrasonic Energy and Liquid Nitrogen
US8043557B2 (en) * 2007-08-15 2011-10-25 American Air Liquide, Inc. Methods and systems for sanitizing or sterilizing a medical device using ultrasonic energy and liquid nitrogen
US20090147905A1 (en) * 2007-12-05 2009-06-11 Kimberly-Clark Worldwide, Inc. Ultrasonic treatment chamber for initiating thermonuclear fusion
US8454889B2 (en) 2007-12-21 2013-06-04 Kimberly-Clark Worldwide, Inc. Gas treatment system
US8858892B2 (en) 2007-12-21 2014-10-14 Kimberly-Clark Worldwide, Inc. Liquid treatment system
US8632613B2 (en) 2007-12-27 2014-01-21 Kimberly-Clark Worldwide, Inc. Process for applying one or more treatment agents to a textile web
US9421504B2 (en) 2007-12-28 2016-08-23 Kimberly-Clark Worldwide, Inc. Ultrasonic treatment chamber for preparing emulsions
US8215822B2 (en) 2007-12-28 2012-07-10 Kimberly-Clark Worldwide, Inc. Ultrasonic treatment chamber for preparing antimicrobial formulations
US8057573B2 (en) 2007-12-28 2011-11-15 Kimberly-Clark Worldwide, Inc. Ultrasonic treatment chamber for increasing the shelf life of formulations
US8206024B2 (en) * 2007-12-28 2012-06-26 Kimberly-Clark Worldwide, Inc. Ultrasonic treatment chamber for particle dispersion into formulations
US20090166177A1 (en) * 2007-12-28 2009-07-02 Kimberly-Clark Worldwide, Inc. Ultrasonic treatment chamber for preparing emulsions
US8685178B2 (en) 2008-12-15 2014-04-01 Kimberly-Clark Worldwide, Inc. Methods of preparing metal-modified silica nanoparticles
US8163388B2 (en) * 2008-12-15 2012-04-24 Kimberly-Clark Worldwide, Inc. Compositions comprising metal-modified silica nanoparticles
US8357726B2 (en) * 2010-01-20 2013-01-22 Vertex L.L.C. Devulcanization of rubber and other elastomers
US8470897B2 (en) 2010-01-20 2013-06-25 Vertex L.L.C. Devulcanization of rubber and other elastomers
DE102010006476A1 (en) 2010-01-31 2011-08-04 Entex Rust & Mitschke GmbH, 44805 Devulcanizing of old rubber
US9926426B2 (en) 2010-01-31 2018-03-27 Entex Rust & Mitschke Gmbh Non-chemical, mechanical procedure for the devulcanization of scrap rubber and/or elastomers and apparatus therefor
CN101928005B (en) * 2010-09-13 2012-07-11 化学工业第二设计院宁波工程有限公司 Reaction device for continuously synthesizing magnesium silicide
US9714333B2 (en) 2011-04-15 2017-07-25 The University Of Akron Single and twin screw extruders with ultrasound horns for decrosslinking and devulcanization
ITMI20120339A1 (en) 2012-03-06 2013-09-07 Dott Viola & Partners Chemical Res Earch S R L PROCEDURE FOR THE DEVULCANIZATION OF VULCANIZED FLUOROELASTOMERS, FLUOROELASTOMERS SO OBTAINED AND THEIR USE
CN103568149A (en) * 2012-08-01 2014-02-12 中胶资源再生（苏州）有限公司 Ultrasonic waste rubber pulverizing technology and ultrasonic waste rubber pulverizing device
CN102815879B (en) * 2012-08-03 2014-03-26 绵阳锐洋新材料技术开发有限公司 Modification method of tire rubber powder, and application thereof in self-insulation partition wall building blocks
MY170049A (en) * 2012-09-12 2019-06-28 Sekhar Res Innovations Sdn Bhd A method for producing devulcanized rubber and an apparatus therefor
WO2014071181A1 (en) * 2012-11-02 2014-05-08 Lehigh Technologies, Inc. Methods of functionalizing reclaimed elastomer material and compositions comprising the same
CN104592545A (en) * 2015-02-15 2015-05-06 朱勇健 Desulfurization decrosslinking method for polyurethane material
DE102015010460A1 (en) 2015-08-16 2017-03-02 Entex Rust & Mitschke Gmbh Starter for devulcanizing old rubber
DE102016007290A1 (en) 2016-06-16 2017-12-21 Entex Rust & Mitschke Gmbh Starter for devulcanizing old rubber
DE102018004280A1 (en) 2017-07-20 2019-01-24 Entex Rust & Mitschke Gmbh Dispergierring for Devulkanisieren of waste rubber
ES2965540T3 (en) * 2018-07-30 2024-04-15 Fund Eurecat Ultrasonic device for polymer extruder machine
WO2021178575A1 (en) * 2020-03-05 2021-09-10 Coe William B Antiferromagnetic strain recovery induced photon pulse initiating bond cleavage in cross-linked rubber structures
IT202100005072A1 (en) 2021-03-04 2022-09-04 Dott Viola & Partners Chemical Res S R L PROCEDURE FOR THE RECOVERY OF SCRAPS OF VULCANIZED HYDROGENATED NITRILE RUBBER AND THEIR USE IN TECHNICAL COMPOUNDS
WO2023026081A1 (en) * 2021-08-27 2023-03-02 Смартлаб Полимерс, Сиа Method for devulcanizing vulcanized rubber
WO2024088814A1 (en) 2022-10-27 2024-05-02 Evonik Operations Gmbh Devulcanized rubber, process for producing devulcanized rubber, and use thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725314A (en) * 1971-06-25 1973-04-03 Cities Service Oil Co Rubber reclamation using ultrasonic energy
US4168295A (en) * 1975-11-20 1979-09-18 Vernon D. Beehler Apparatus for enhancing chemical reactions
US4104205A (en) * 1976-01-06 1978-08-01 The Goodyear Tire & Rubber Company Microwave devulcanization of rubber
US4379724A (en) * 1981-08-14 1983-04-12 Taiyo Denko Kabushiki Kaisha Method for reclaiming waste thermoplastic resin film
JPS62121741A (en) * 1985-11-21 1987-06-03 Yokohama Rubber Co Ltd:The Method of desulfurizing rubber by ultrasonic wave
GB8724067D0 (en) * 1987-10-14 1987-11-18 Unilever Plc Manipulating particles

Also Published As

Publication number Publication date
NZ254379A (en) 1997-01-29
ATE195458T1 (en) 2000-09-15
DE69329245T2 (en) 2001-03-29
US5258413A (en) 1993-11-02
EP0647240A1 (en) 1995-04-12
BR9306597A (en) 1998-12-08
DE69329245D1 (en) 2000-09-21
AU4636793A (en) 1994-01-24
ES2151512T3 (en) 2001-01-01
CN1098421A (en) 1995-02-08
JP3504947B2 (en) 2004-03-08
CA2137923C (en) 2003-08-12
AU668581B2 (en) 1996-05-09
WO1994000497A1 (en) 1994-01-06
JPH08501258A (en) 1996-02-13
GR3034860T3 (en) 2001-02-28
CN1042432C (en) 1999-03-10
EP0647240A4 (en) 1995-05-24
CA2137923A1 (en) 1994-01-06
EP0647240B1 (en) 2000-08-16

Similar Documents

Publication Publication Date Title
DK0647240T3 (en) Continuous ultrasonic vulcanization of vulcanized alastomers
DK0674732T3 (en) Composite block and method of manufacture
BR9706475A (en) Thermoplastic vulcanized and process to dynamically vulcanize a rubber from a thermoplastic elastomer mixture
WO2018236598A1 (en) Anti-fatigue mat/shock pad
BR8606440A (en) PROCESS FOR THE PRODUCTION OF A RUBBER MIXTURE
MY129158A (en) Novel elastomer composites, method and apparatus
BR9712691A (en) Molded parts that expand and cure by heating, free of sulfur
ES2090115T3 (en) PROCESS FOR THE SURFACE TREATMENT OF POLYMERS FOR THE REINFORCEMENT OF THE ADHESION TO RUBBER.
DE602005027767D1 (en) Dynamic cross-linking process of elastomers with in situ polymerization
PL312247A1 (en) Sulphide resins in vulcanised rubber compositions
DE59407105D1 (en) METHOD AND DEVICE FOR PRODUCING A SHAPED SHEET MATERIAL
BR9714370A (en) Method and apparatus for continuous devulcanization of rubber
DE69410795T2 (en) LINES FOR PIPELINES AND PIPES
BR9300252A (en) Fast process for regeneration of vulcanized or semi-vulcanized rubber
ES8505568A1 (en) Ambient temperature repair of elastomeric articles having a hollow or deformity therein.
ATE65739T1 (en) SYNTACTIC THERMAL INSULATION MATERIAL, APPARATUS AND METHOD FOR THE PRODUCTION THEREOF, AND INSULATION AGENT CONTAINING SUCH MATERIAL.
US6649237B1 (en) Mat consisting of tubes
KR860008023A (en) How to Repair a Tire with Repair Kits Only
ATE166682T1 (en) SOUNDPROOFING ELEMENT AND METHOD FOR PRODUCING A SOUNDPROOFING ELEMENT
BRPI0419272A (en) process for surface activation and / or devulcanization of sulfur vulcanized rubber particles
PT1268168E (en) PROCESS AND DEVICE FOR THE VULCANIZATION OF MOLDED BODIES FROM RUBBER MIXTURES
MX9304560A (en) CONTINUOUS ULTRASONIC DEVULCANIZATION OF VULCANIZED ELASTOMERS.
DE3369330D1 (en) Monomer-plasticized elastomers and process for producing same
YU28301A (en) Process for solidifying the surface of raw sausage emulsion by ultrasonic treatment
BR8101061A (en) VULCANIZATION ACCELERATORS, RUBBER COMPOSITES, PROCESS FOR VULCANIZING RUBBER AND RUBBER VULCANIZED